Hardy & Beck M30 Headers on eBay

yes they are pricey. not sure what the internal diameter is of the primary tubes. these were made by Stahl ... they have the same shape. one statement they make is not so correct - "There are no other options for long tube headers today and the benefits to even a stock engine are noticeable, modified engines will realize a high HP gain. Better engine revving, more HP, amazing sound and better exhaust scavenging and flow". you can still by m30 headers from ACP, the company that bought the Stahl jigs and designs, for half that price.
 
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boonies said:
I am very happy with my H&B headers . I have gotten a few compliments on the exhaust note (paired with W&N stainless exhaust) and my butt dyno says power is better. ;)
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surprised you have H+B and not Stahl ... Stahl was made in PA ... unless your car came from CA. i believe ACP who tookover from Stahl is also in PA
 
I picked up the headers several years ago from a forum member here. I had been looking for Stahl’s, but was excited to see the H&B’s when they came up.

I had them “on the shelf “ for a while, finally installing them after the engine rebuild
 
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